Charge sensitivity of the Inductive Single-Electron Transistor

We calculate the charge sensitivity of a recently demonstrated device where the Josephson inductance of a single Cooper-pair transistor is measured. We find that the intrinsic limit to detector performance is set by oscillator quantum noise. Sensitivity better than $10^{-6}$e$/\sqrt{\mathrm{Hz}}$ is possible with a high $Q$-value $\sim 10^3$, or using a SQUID amplifier. The model is compared to experiment, where charge sensitivity $3 \times 10^{-5}$e$/\sqrt{\mathrm{Hz}}$ and bandwidth 100 MHz are achieved.Comment: 3 page

Praktik Kewirausahaan Gereja

This study aims to examine and describe entrepreneurial practices of the Pentecostal church in alleviating poverty in Wamena. The method in this research is an explanatory sequential mixed method which firstly conducts quantitative research, analyzes the results and then arranges the results to explain them more details with qualitative research. The sample is GPdI Elshaddai Wamena and GPdI Elroi Wamena purposively selected, namely the congregations who did entrepreneurship practices. Data collection techniques are through questionnaires, observation, and interviews. Data is collected and analyzed quantitatively, through the relative frequency distribution table, and described qualitatively. The results showed 132 GPdI Elshaddai Wamena congregations and 156 GPdI Elroi Wamena congregations had practiced entrepreneurship in the church well. Entrepreunership practices carried out by GPdI Elshaddai Wamena and GPdI Elroi Wamena that have contributed to alleviating poverty in Wamena. &nbsp

Coming Out of Crisis: Patient Experiences in Primary Care in New Orleans, Four Years Post-Katrina

Examines the network of neighborhood clinics funded with federal, state, and local money that emerged after Hurricane Katrina as a model for serving vulnerable populations. Looks at access, communication, chronic illnesses management, and preventive care

How Health Care Reform Can Lower the Costs of Insurance Administration

Examines the sources of U.S. insurance administration costs and estimates potential cost savings from the creation of a national insurance exchange to replace the individual and small-group markets as part of a public-private approach to reform

Composite biasing in Monte Carlo radiative transfer

Biasing or importance sampling is a powerful technique in Monte Carlo radiative transfer, and can be applied in different forms to increase the accuracy and efficiency of simulations. One of the drawbacks of the use of biasing is the potential introduction of large weight factors. We discuss a general strategy, composite biasing, to suppress the appearance of large weight factors. We use this composite biasing approach for two different problems faced by current state-of-the-art Monte Carlo radiative transfer codes: the generation of photon packages from multiple components, and the penetration of radiation through high optical depth barriers. In both cases, the implementation of the relevant algorithms is trivial and does not interfere with any other optimisation techniques. Through simple test models, we demonstrate the general applicability, accuracy and efficiency of the composite biasing approach. In particular, for the penetration of high optical depths, the gain in efficiency is spectacular for the specific problems that we consider: in simulations with composite path length stretching, high accuracy results are obtained even for simulations with modest numbers of photon packages, while simulations without biasing cannot reach convergence, even with a huge number of photon packages.Comment: 12 pages, accepted for publication in A&

Cancellation of soft and collinear divergences in noncommutative QED

In this paper, we investigate the behavior of non-commutative IR divergences and will also discuss their cancellation in the physical cross sections. The commutative IR (soft) divergences existing in the non-planar diagrams will be examined in order to prove an all order cancellation of these divergences using the Weinberg's method. In non-commutative QED, collinear divergences due to triple photon splitting vertex, were encountered, which are shown to be canceled out by the non-commutative version of KLN theorem. This guarantees that there is no mixing between the Collinear, soft and non-commutative IR divergences

The Comprehensive Congressional Health Reform Bills of 2009: A Look at Health Insurance, Delivery System, and Financing Provisions

Provides an overview of the key provisions of the House and Senate healthcare reform bills that are essential to a high-performance health system. Compares approaches to health insurance reforms, health system reforms, and revenue sources and financing

Diffusion-emission theory of photon enhanced thermionic emission solar energy harvesters

Numerical and semi-analytical models are presented for photon-enhanced-thermionic-emission (PETE) devices. The models take diffusion of electrons, inhomogeneous photogeneration, and bulk and surface recombination into account. The efficiencies of PETE devices with silicon cathodes are calculated. Our model predicts significantly different electron affinity and temperature dependence for the device than the earlier model based on a rate-equation description of the cathode. We show that surface recombination can reduce the efficiency below 10% at the cathode temperature of 800 K and the concentration of 1000 suns, but operating the device at high injection levels can increase the efficiency to 15%.Comment: 5 pages, 4 figure